private void Open()
{
if (grabbing)
{
Stop();
}
try
{
deviceHandle = Pylon.CreateDeviceByIndex(deviceIndex);
imageProvider.Open(deviceHandle);
}
catch (Exception e)
{
log.Error("Could not open Basler device.");
LogError(e, imageProvider.GetLastErrorMessage());
return;
}
if (!deviceHandle.IsValid)
{
return;
}
SpecificInfo specific = summary.Specific as SpecificInfo;
if (specific == null)
{
return;
}
// Store the handle into the specific info so that we can retrieve device informations from the configuration dialog.
specific.Handle = deviceHandle;
GenApiEnum currentStreamFormat = PylonHelper.ReadEnumCurrentValue(deviceHandle, "PixelFormat");
if (!string.IsNullOrEmpty(specific.StreamFormat) && specific.StreamFormat != currentStreamFormat.Symbol)
{
PylonHelper.WriteEnum(deviceHandle, "PixelFormat", specific.StreamFormat);
}
// The bayer conversion mode will be set during Prepare().
if (firstOpen)
{
// Restore camera parameters from the XML blurb.
// Regular properties, including image size.
// First we read the current properties from the API to get fully formed properties.
// We merge the values saved in the XML into the properties.
// (The restoration from the XML doesn't create fully formed properties, it just contains the values).
// Then commit the properties to the camera.
Dictionary <string, CameraProperty> cameraProperties = CameraPropertyManager.Read(deviceHandle, summary.Identifier);
CameraPropertyManager.MergeProperties(cameraProperties, specific.CameraProperties);
specific.CameraProperties = cameraProperties;
CameraPropertyManager.WriteCriticalProperties(deviceHandle, specific.CameraProperties);
}
else
{
CameraPropertyManager.WriteCriticalProperties(deviceHandle, specific.CameraProperties);
}
}
/// <summary>
/// Takes a boolean of whether auto is ON or OFF, convert it to the correct representation and write it in the auto property.
/// </summary>
private static void WriteAuto(NODE_HANDLE nodeHandle, string identifier, bool isAuto)
{
string newValue = isAuto ? GetAutoTrue(identifier) : GetAutoFalse(identifier);
switch (identifier)
{
case "AcquisitionFrameRateEnable":
{
bool newValueBool = bool.Parse(newValue);
GenApi.BooleanSetValue(nodeHandle, newValueBool);
break;
}
case "GainAuto":
case "ExposureAuto":
default:
{
PylonHelper.WriteEnum(nodeHandle, identifier, newValue);
break;
}
}
}
private void Open()
{
// Unlike in the DirectShow module, we do not backup and restore camera configuration.
// If the user configured the camera outside of Kinovea we respect the new settings.
// Two reasons:
// 1. In DirectShow we must do the backup/restore to work around drivers that inadvertently reset the camera properties.
// 2. Industrial cameras have many properties that won't be configurable in Kinovea
// so the user is more likely to configure the camera from the outside.
if (grabbing)
{
Stop();
}
try
{
deviceHandle = Pylon.CreateDeviceByIndex(deviceIndex);
imageProvider.Open(deviceHandle);
}
catch (Exception e)
{
log.Error("Could not open Basler device.");
LogError(e, imageProvider.GetLastErrorMessage());
return;
}
if (!deviceHandle.IsValid)
{
return;
}
SpecificInfo specific = summary.Specific as SpecificInfo;
if (specific == null)
{
return;
}
// Store the handle into the specific info so that we can retrieve device informations from the configuration dialog.
specific.Handle = deviceHandle;
GenApiEnum currentStreamFormat = PylonHelper.ReadEnumCurrentValue(deviceHandle, "PixelFormat");
// Some properties can only be changed when the camera is opened but not streaming.
// We store them in the summary when coming back from FormConfiguration, and we write them to the camera here.
// Only do this if it's not the first time we open the camera, to respect any change that could have been done outside Kinovea.
if (!firstOpen)
{
if (specific.StreamFormat != currentStreamFormat.Symbol)
{
PylonHelper.WriteEnum(deviceHandle, "PixelFormat", specific.StreamFormat);
}
if (specific.CameraProperties != null && specific.CameraProperties.ContainsKey("framerate"))
{
if (specific.CameraProperties.ContainsKey("enableFramerate") && specific.CameraProperties["enableFramerate"].Supported)
{
bool enabled = bool.Parse(specific.CameraProperties["enableFramerate"].CurrentValue);
if (!enabled && !specific.CameraProperties["enableFramerate"].ReadOnly)
{
specific.CameraProperties["enableFramerate"].CurrentValue = "true";
CameraPropertyManager.Write(deviceHandle, specific.CameraProperties["enableFramerate"]);
}
}
CameraPropertyManager.Write(deviceHandle, specific.CameraProperties["framerate"]);
}
if (specific.CameraProperties != null && specific.CameraProperties.ContainsKey("width") && specific.CameraProperties.ContainsKey("height"))
{
CameraPropertyManager.Write(deviceHandle, specific.CameraProperties["width"]);
CameraPropertyManager.Write(deviceHandle, specific.CameraProperties["height"]);
}
}
else
{
specific.StreamFormat = currentStreamFormat.Symbol;
}
}
public static void Write(PYLON_DEVICE_HANDLE deviceHandle, CameraProperty property)
{
if (!property.Supported || string.IsNullOrEmpty(property.Identifier) || !deviceHandle.IsValid)
{
return;
}
// If "auto" flag is OFF we should write it first. On some cameras the value is not writable until the corresponding auto flag is off.
// If it's ON (continuous), it doesn't matter as our value will be overwritten soon anyway.
if (!string.IsNullOrEmpty(property.AutomaticIdentifier))
{
string enumValue = property.Automatic ? "Continuous" : "Off";
PylonHelper.WriteEnum(deviceHandle, property.AutomaticIdentifier, enumValue);
}
NODEMAP_HANDLE nodeMapHandle = Pylon.DeviceGetNodeMap(deviceHandle);
NODE_HANDLE nodeHandle = GenApi.NodeMapGetNode(nodeMapHandle, property.Identifier);
if (!nodeHandle.IsValid)
{
return;
}
EGenApiAccessMode accessMode = GenApi.NodeGetAccessMode(nodeHandle);
if (accessMode != EGenApiAccessMode.RW)
{
if (!string.IsNullOrEmpty(property.AutomaticIdentifier) && !property.Automatic)
{
log.ErrorFormat("Error while writing Basler Pylon GenICam property {0}.", property.Identifier);
log.ErrorFormat("The property is not writable.");
}
return;
}
try
{
switch (property.Type)
{
case CameraPropertyType.Integer:
{
long value = long.Parse(property.CurrentValue, CultureInfo.InvariantCulture);
long step = long.Parse(property.Step, CultureInfo.InvariantCulture);
long remainder = value % step;
if (remainder > 0)
{
value = value - remainder;
}
GenApi.IntegerSetValue(nodeHandle, value);
break;
}
case CameraPropertyType.Float:
{
double max = GenApi.FloatGetMax(nodeHandle);
double min = GenApi.FloatGetMin(nodeHandle);
double value = double.Parse(property.CurrentValue, CultureInfo.InvariantCulture);
value = Math.Min(Math.Max(value, min), max);
GenApi.FloatSetValue(nodeHandle, value);
break;
}
case CameraPropertyType.Boolean:
{
bool value = bool.Parse(property.CurrentValue);
GenApi.BooleanSetValue(nodeHandle, value);
break;
}
default:
break;
}
}
catch
{
log.ErrorFormat("Error while writing Basler Pylon GenICam property {0}.", property.Identifier);
}
}